OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination, leading to denial of service.
History

Sun, 27 Sep 2026 11:15:00 +0000

Type Values Removed Values Added
First Time appeared Academysoftwarefoundation
Academysoftwarefoundation openexr
Vendors & Products Academysoftwarefoundation
Academysoftwarefoundation openexr

Fri, 25 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 25 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
Title openexr: openexr: Denial of Service via crafted EXR file
References
Metrics threat_severity

None

threat_severity

Moderate


Thu, 24 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}


Thu, 24 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Description OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination, leading to denial of service.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-09-24T00:00:00.000Z

Updated: 2026-09-24T18:18:33.846Z

Reserved: 2026-09-10T00:00:00.000Z

Link: CVE-2026-88384

cve-icon Vulnrichment

Updated: 2026-09-24T18:13:20.331Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-24T17:17:07.907

Modified: 2026-09-24T21:08:22.573

Link: CVE-2026-88384

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-24T00:00:00Z

Links: CVE-2026-88384 - Bugzilla